To copy rows, you have to select them first.

You can select rows two ways:

• Click on the row indicator  (The number before each row)
• Or right click on any cell of the row and choose the Select row option.

Even multiple rows can be selected if you hold Shift.

To copy the selected rows, you have to press Ctrl+C.

You can paste rows by pressing Ctrl +M (to open the Import panel) and then Ctrl + V.

After pressing Ctrl + V, you will see import preview.

If there is any problem with the import, you the problematic cells red. 

If you hoover on the red cells, there will be an error message of it, so you will be able to see the problem.

If you fix the problems, you will see the preview without any red cells and you can click on Create.